Rotary slide holder for projectors,申请号US19380182970-传众专利搜索

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发明名称	Rotary slide holder for projectors
摘要
申请公布号	US2146452(A)	申请公布日期	1939.02.07
申请号	US19380182970	申请日期	1938.01.03
申请人	SPINDLER & SAUPPE	发明人	SPINDLER GUSTAV
分类号	G03B23/06	主分类号	G03B23/06
代理机构		代理人
主权项
地址

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